diff --git a/cli/onionshare_cli/__init__.py b/cli/onionshare_cli/__init__.py
index 7361ac9e..34627deb 100644
--- a/cli/onionshare_cli/__init__.py
+++ b/cli/onionshare_cli/__init__.py
@@ -22,7 +22,7 @@ import os, sys, time, argparse, threading
 from datetime import datetime
 from datetime import timedelta
 
-from .common import Common
+from .common import Common, CannotFindTor
 from .web import Web
 from .onion import *
 from .onionshare import OnionShare
@@ -320,7 +320,15 @@ def main(cwd=None):
     web = Web(common, False, mode_settings, mode)
 
     # Start the Onion object
-    onion = Onion(common, use_tmp_dir=True)
+    try:
+        onion = Onion(common, use_tmp_dir=True)
+    except CannotFindTor:
+        print("You must install tor to use OnionShare from the command line")
+        if common.platform == "Darwin":
+            print("In macOS, you can do this with Homebrew (https://brew.sh):")
+            print("  brew install tor")
+        sys.exit()
+
     try:
         onion.connect(
             custom_settings=False,
diff --git a/cli/onionshare_cli/common.py b/cli/onionshare_cli/common.py
index a1213387..e8b174b6 100644
--- a/cli/onionshare_cli/common.py
+++ b/cli/onionshare_cli/common.py
@@ -34,6 +34,12 @@ from pkg_resources import resource_filename
 from .settings import Settings
 
 
+class CannotFindTor(Exception):
+    """
+    OnionShare can't find a tor binary
+    """
+
+
 class Common:
     """
     The Common object is shared amongst all parts of OnionShare.
@@ -82,6 +88,8 @@ class Common:
     def get_tor_paths(self):
         if self.platform == "Linux":
             tor_path = shutil.which("tor")
+            if not tor_path:
+                raise CannotFindTor()
             obfs4proxy_file_path = shutil.which("obfs4proxy")
             prefix = os.path.dirname(os.path.dirname(tor_path))
             tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
@@ -94,6 +102,8 @@ class Common:
             tor_geo_ipv6_file_path = os.path.join(base_path, "Data", "Tor", "geoip6")
         elif self.platform == "Darwin":
             tor_path = shutil.which("tor")
+            if not tor_path:
+                raise CannotFindTor()
             obfs4proxy_file_path = shutil.which("obfs4proxy")
             prefix = os.path.dirname(os.path.dirname(tor_path))
             tor_geo_ip_file_path = os.path.join(prefix, "share/tor/geoip")
diff --git a/cli/onionshare_cli/onion.py b/cli/onionshare_cli/onion.py
index 1b025bf8..d6f59a59 100644
--- a/cli/onionshare_cli/onion.py
+++ b/cli/onionshare_cli/onion.py
@@ -32,7 +32,6 @@ import getpass
 import psutil
 
 from distutils.version import LooseVersion as Version
-from . import common
 from .settings import Settings
 
 # TODO: Figure out how to localize this for the GUI
@@ -44,40 +43,30 @@ class TorErrorAutomatic(Exception):
     using automatic settings that should work with Tor Browser.
     """
 
-    pass
-
 
 class TorErrorInvalidSetting(Exception):
     """
     This exception is raised if the settings just don't make sense.
     """
 
-    pass
-
 
 class TorErrorSocketPort(Exception):
     """
     OnionShare can't connect to the Tor controller using the supplied address and port.
     """
 
-    pass
-
 
 class TorErrorSocketFile(Exception):
     """
     OnionShare can't connect to the Tor controller using the supplied socket file.
     """
 
-    pass
-
 
 class TorErrorMissingPassword(Exception):
     """
     OnionShare connected to the Tor controller, but it requires a password.
     """
 
-    pass
-
 
 class TorErrorUnreadableCookieFile(Exception):
     """
@@ -85,8 +74,6 @@ class TorErrorUnreadableCookieFile(Exception):
     to access the cookie file.
     """
 
-    pass
-
 
 class TorErrorAuthError(Exception):
     """
@@ -94,8 +81,6 @@ class TorErrorAuthError(Exception):
     that a Tor controller isn't listening on this port.
     """
 
-    pass
-
 
 class TorErrorProtocolError(Exception):
     """
@@ -103,8 +88,6 @@ class TorErrorProtocolError(Exception):
     isn't acting like a Tor controller (such as in Whonix).
     """
 
-    pass
-
 
 class TorTooOld(Exception):
     """
@@ -113,8 +96,6 @@ class TorTooOld(Exception):
     is too old.
     """
 
-    pass
-
 
 class BundledTorTimeout(Exception):
     """
diff --git a/desktop/README.md b/desktop/README.md
index 053bf4ea..97d0fd30 100644
--- a/desktop/README.md
+++ b/desktop/README.md
@@ -51,7 +51,7 @@ Download Tor Browser and extract the binaries:
 python scripts\get-tor-windows.py
 ```
 
-### Prepare the code
+### Prepare the virtual environment
 
 OnionShare uses [Briefcase](https://briefcase.readthedocs.io/en/latest/).
 
@@ -79,15 +79,27 @@ pip install briefcase
 In order to work with the desktop app, you'll need to build a wheel of the CLI package first, and copy it into the `desktop` folder. You'll need to re-run this script each time you change the CLI code.
 
 ```sh
-./scripts/rebuild-cli.sh
+python scripts/rebuild-cli.py
 ```
 
-Run OnionShare from the source tree like this:
+### Running OnionShare from the source code tree
+
+Inside the virtual environment, run OnionShare like this to install all of the dependencies:
 
 ```
 briefcase dev -d
 ```
 
+Once you have the dependencies installed, you can run it using the `dev.sh` script, which lets you use command line arguments, such as to `--verbose` or `--local-only`:
+
+```
+./scripts/dev.sh --help
+./scripts/dev.sh -v
+./scripts/dev.sh -v --local-only
+```
+
+Windows uses `scripts\dev.bat` instead.
+
 ## Running tests
 
 Install these packages inside your virtual environment:
diff --git a/desktop/scripts/dev.bat b/desktop/scripts/dev.bat
new file mode 100644
index 00000000..9b537a90
--- /dev/null
+++ b/desktop/scripts/dev.bat
@@ -0,0 +1,3 @@
+cd src
+python -c "import onionshare; onionshare.main()" %*
+cd ..
\ No newline at end of file
diff --git a/desktop/scripts/dev.sh b/desktop/scripts/dev.sh
new file mode 100755
index 00000000..6ce5e796
--- /dev/null
+++ b/desktop/scripts/dev.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# Run OnionShare desktop, allowing you to use command-line arguments
+
+SCRIPTS_DIR="$( cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
+cd $SCRIPTS_DIR
+
+cd ../src
+python -c "import onionshare; onionshare.main()" $@
\ No newline at end of file
diff --git a/desktop/scripts/rebuild-cli.py b/desktop/scripts/rebuild-cli.py
new file mode 100755
index 00000000..c13461bc
--- /dev/null
+++ b/desktop/scripts/rebuild-cli.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+"""
+This script builds the CLI python wheel, copies it to the desktop folder,
+and installs it in the virtual environment.
+"""
+
+import inspect
+import os
+import sys
+import glob
+import subprocess
+import shutil
+
+
+def main():
+    # Build paths
+    root_path = os.path.dirname(
+        os.path.dirname(
+            os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
+        )
+    )
+    cli_path = os.path.join(root_path, "cli")
+    desktop_path = os.path.join(root_path, "desktop")
+
+    # Delete old wheels
+    for filename in glob.glob(os.path.join(cli_path, "dist", "*.whl")):
+        os.remove(filename)
+
+    # Build new wheel
+    subprocess.call(["poetry", "install"], cwd=cli_path)
+    subprocess.call(["poetry", "build"], cwd=cli_path)
+    wheel_filename = glob.glob(os.path.join(cli_path, "dist", "*.whl"))[0]
+    wheel_basename = os.path.basename(wheel_filename)
+    shutil.copyfile(
+        wheel_filename,
+        os.path.join(desktop_path, wheel_basename),
+    )
+
+    # Reinstall the new wheel
+    subprocess.call(["pip", "uninstall", "onionshare-cli", "-y"])
+    subprocess.call(["pip", "install", os.path.join(desktop_path, wheel_basename)])
+
+
+if __name__ == "__main__":
+    main()
diff --git a/desktop/scripts/rebuild-cli.sh b/desktop/scripts/rebuild-cli.sh
deleted file mode 100755
index f8191955..00000000
--- a/desktop/scripts/rebuild-cli.sh
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/bash
-
-# Build the CLI python wheel and copy it to the desktop folder
-
-SCRIPTS_DIR="$( cd "$(dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
-cd $SCRIPTS_DIR
-cd ../../cli
-poetry build
-cp dist/*.whl ../desktop
\ No newline at end of file
diff --git a/desktop/src/onionshare/settings_dialog.py b/desktop/src/onionshare/settings_dialog.py
index 5f37bda1..40de8648 100644
--- a/desktop/src/onionshare/settings_dialog.py
+++ b/desktop/src/onionshare/settings_dialog.py
@@ -142,7 +142,7 @@ class SettingsDialog(QtWidgets.QDialog):
             self.tor_geo_ip_file_path,
             self.tor_geo_ipv6_file_path,
             self.obfs4proxy_file_path,
-        ) = self.common.get_tor_paths()
+        ) = self.common.gui.get_tor_paths()
         if not self.obfs4proxy_file_path or not os.path.isfile(
             self.obfs4proxy_file_path
         ):
@@ -165,7 +165,7 @@ class SettingsDialog(QtWidgets.QDialog):
             self.tor_geo_ip_file_path,
             self.tor_geo_ipv6_file_path,
             self.obfs4proxy_file_path,
-        ) = self.common.get_tor_paths()
+        ) = self.common.gui.get_tor_paths()
         if not self.obfs4proxy_file_path or not os.path.isfile(
             self.obfs4proxy_file_path
         ):